(-5,9) (0,-1) (4,-9) (10,-21) What is the domain of the set of ordered pairs above? A. {9, -1, -9, -21} B. {-5, 9} C. {-5, 10} D. {-5, 0, 4, 10}

D.{-5, 0, 4, 10} is the domain set of above ordered pairs

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt